Answer: Animals and Humans or groundwater
Explanation: If animals and humans are moving around a lot and the human is using machinery, it will cause physical erosion. Ground water may be because that is the only water it may have to erode
Answer = C. As the temperature increases, the speed of gas molecules increases.
As the temperature increases, the gas molecules gain kinetic energy, therefore their speed increases.
Answer: The number of moles of 
are 6.
Explanation:
According to avogadro's law, 1 mole of every substance occupies 22.4 L at STP and contains avogadro's number 
of particles.
To calculate the moles, we use the equation:
Given mass = 192 g
Molar mass = 32 g/mol
The number of moles of are 6.
Answer:
the 4 properties of waves are frequency, amplitude, wavelength, and speed.
Explanation:
